Hot Tub & Spa - Unions, Collars & Gaskets

In this section you will find sensors and small parts including heater o-rings and gaskets. Suitable for all major branded heaters and spas.

See also:  
Low Flow Heaters    
Heater Elements   
Flow Thru Heaters 

Helpful Artical: 
Replacing a Balboa Heater

Unsure what replacement part you need? Send us an image of your part

In this section you will find sensors and small parts including heater o-rings and gaskets. Suitable for all major branded heaters and spas.

See also:  
Low Flow Heaters    
Heater Elements   
Flow Thru Heaters 

Helpful Artical: 
Replacing a Balboa Heater

Unsure what replacement part you need? Send us an image of your part

Active Filters

Sort by
Spares Available
Spares Available
  • HydroQuip Heater Tailpiece
  • 1.5" (Socket)
  • White
  • PVC Plastic
Awaiting delivery Out of Stock
Email me when back in stock
Awaiting delivery More stock (10) on order
£5.40
Saving: £2.40
  • HydroQuip Heater Tailpiece
  • 1.5" (Spigot/Male)
  • White
  • PVC Plastic
Awaiting delivery Out of Stock
Email me when back in stock
Awaiting delivery More stock (10) on order
£4.50
Saving: £2.00

 

  • Balboa
  • Centre Bead
  • 2.00" Inch Inside diameter
  • Suitable for Heater & Pump Unions
In stock 38 in stock
In stock Same day dispatch on orders before 15:30
In stock More stock (100) due on 13/12/2019
£0.99
Saving: £0.08

 

  • Balboa M7 Sensor
  • 30cm Cable Length
  • Suitable for GS/GL Spa Packs
  • 53605

  • » Find out more
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    In stock More stock (10) due on 13/12/2019
    £23.99
    Saving: £5.68
    12 Inch Cable
    Inc. Nut & Washer
    6mm Dia. Probe

     

    • Gasket
    • 1.5" inside diameter
    • Suitable for Heaters
    In stock 37 in stock
    In stock Same day dispatch on orders before 15:30
    £1.99
     
    • Balboa Gasket
    • With Centre Bead
    • 1.5" / 38mm inside diameter
    • 60mm outside diameter
    In stock 37 in stock
    In stock Same day dispatch on orders before 15:30
    £1.99
     

     

  • HydroAir Heater Tailpiece
  • Metric 50mm I/D
  • Grey
  • In stock 8 in stock
    In stock Same day dispatch on orders before 15:30
    £7.89
     
    • HydroQuip Heater Tailpiece
    • 1.0" (Socket)
    • White
    • PVC Plastic
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £5.40
    Saving: £2.40
    • HydroQuip Heater Tailpiece
    • 2.0" (Socket Short)
    • White
    • PVC Plastic
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £6.60
    Saving: £1.20
    • HydroQuip Heater Tailpiece
    • 2.0"(Spigot/Male Short)
    • White
    • PVC Plastic
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £9.00
    Saving: £2.40
    • HydroQuip Heater Tailpiece
    • 2.0" Thread x 1.5" Socket
    • White
    • PVC Plastic
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £8.09
    Saving: £3.31
    • HydroQuip Heater Tailpiece
    • 2.0 " Thread x 2.0" Spig /1.5" Soc
    • White
    • PVC Plastic
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £10.07
    Saving: £1.33
    Heater Tailpiece 2.0"
    2.0" Thread
    2.0" Spig /1.5" Soc
    • HydroQuip Heater Tailpiece 2.00"
    • 1" 90 Degree Barb
    Out of stock Out of Stock
    Email me when back in stock
    £13.27
    Saving: £1.13
    • HydroQuip Heater Tailpiece 2.00" 
    • 3/4" 90 Degree Barb
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £12.70
    Saving: £5.30
    • HydroQuip Heater Tailpiece 3.00" 
    • 3/4"  90 Degree Barb
    In stock 20 in stock
    In stock Same day dispatch on orders before 15:30
    £4.99
     
    • HydroQuip Heater Union Nut & Retainer 
    • 2.00"
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £17.75
    Saving: £2.65
    • HydroQuip Heater Union Nut & Retainer
    • 3.00 "
    In stock 20 in stock
    In stock Same day dispatch on orders before 15:30
    £7.79
    Saving: £7.21
    • Split Nut for Heater Union
    • 1.5" 
    • Supplied with screws
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £7.86
     
    • Split Nut for Heater Union
    • 2.0" 
    • Supplied with screws
    Awaiting delivery Out of Stock
    Email me when back in stock
    Awaiting delivery More stock (10) on order
    £8.26
    Saving: £3.14
    • HydroQuip Heater Union Nut & Retainer 
    • 1.50 "
    Out of stock Out of Stock
    Email me when back in stock
    £16.22
    Saving: £4.18

     

    • Suitable for In.clear & In.Therm
    • Includes required screws
    • Black Finish
    In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £16.99
    Saving: £3.98

     

    • O Ring
    • 13mm O/D
    • 2mm Thickness
    • Suitable for Spa-Quip Optical Water Sensor
    In stock 5 in stock
    In stock Same day dispatch on orders before 15:30
    £0.99
     

     

    • O Ring
    • 68mm OD
    • 2.5mm Thickness
    • Suitable for 2" Heater Tail Pieces (union)
    In stock 13 in stock
    In stock Same day dispatch on orders before 15:30
    £0.62
    Saving: £0.11

     

    • O Ring
    • 76mm O/D
    • 3.5mm Thickness
    • Suitable for 2.50" Pump / Heater Unions
    In stock 23 in stock
    In stock Same day dispatch on orders before 15:30
    £1.36
    Saving: £0.24

     

    • Pump Union Heat Stick
    • Generates Heat via Friction.
    • Connection type: Glued Female Socket.
    • Connection Size: 1.5" (48mm)
    In stock 1 in stock
    In stock Same day dispatch on orders before 15:30
    £25.49
    Saving: £6.19

     

    • Spa-Quip Auto Reset Klixon
    • Suitable for All Spa-Quip Heaters
    • Power: 12vac
    In stock 2 in stock
    In stock Same day dispatch on orders before 15:30
    £4.99
    Saving: £0.93

     

    • Spa-Quip Heater Union
    • Single Unit
    • Suitable for SP600/SP601/SP800/SP1200
    Available for Pre Order Available for Pre Order
    Available for Pre Order More stock (5) on order
    £29.49
    Saving: £9.41

     

  • Split nut union
  • 2.00" inch size
  • Supplied with screws
  • In stock 9 in stock
    In stock Same day dispatch on orders before 15:30
    £2.99
    Saving: £0.78

     

    • Split nut union
    • 1.5 inch size
    • Supplied with screws
    In stock 14 in stock
    In stock Same day dispatch on orders before 15:30
    £3.49
    Saving: £0.56

     

    • Split Nut Heater Union
    • 2.0" O/D
    • For Balboa Heater Units
    In stock 16 in stock
    In stock Same day dispatch on orders before 15:30
    £4.49
    Saving: £0.35

     

    • Waterway Flat Gasket
    • 1.50" inside diameter
    • White
    • Suitable for Unions
    In stock 25 in stock
    In stock Same day dispatch on orders before 15:30
    £0.65
    Saving: £0.11

     

    • Waterway Flat Gasket
    • 2.00" O/D
    • White
    • Suitable for Unions
    In stock 34 in stock
    In stock Same day dispatch on orders before 15:30
    £0.77
    Saving: £0.13

     

    • Waterway Gasket
    • Centre Bead
    • 2.00" Inch Inside diameter
    • Suitable for Heater & Pump Unions
    In stock 45 in stock
    In stock Same day dispatch on orders before 15:30
    £0.82
    Saving: £0.15
    • Waterway Gasket
    • Centre Bead
    • 3.50" Inch OD
    • Suitable for Heater & Pump Unions
    In stock 20 in stock
    In stock Same day dispatch on orders before 15:30
    £0.65
    Saving: £0.11

     

    • Waterway Gasket
    • Flat/Bead Single Side
    • 60mm OD x 5.0mm
    In stock 17 in stock
    In stock Same day dispatch on orders before 15:30
    £0.99
     

     

  • Waterway Heater Tailpiece
  • 1.50" Socket
  • White
  • PVC Plastic
  • In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £1.99
    Saving: £0.27

     

    • Waterway Heater Tailpiece
    • 2.00" Socket
    • White
    • PVC Plastic
    In stock 7 in stock
    In stock Same day dispatch on orders before 15:30
    £2.49
    Saving: £0.58

     

    • Waterway Heater Tailpiece
    • 2.00" Spigot
    • White
    • PVC Plastic
    In stock 3 in stock
    In stock Same day dispatch on orders before 15:30
    £2.49
    Saving: £0.51